[93548] in North American Network Operators' Group

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Re: The IESG Approved the Expansion of the AS Number Registry

daemon@ATHENA.MIT.EDU (Florian Weimer)
Fri Dec 1 12:45:48 2006

From: Florian Weimer <fw@deneb.enyo.de>
To: "Chris L. Morrow" <christopher.morrow@verizonbusiness.com>
Cc: Andy Davidson <andy@nosignal.org>,
	NANOG Off-topic Gripes <nanog@merit.edu>
Date: Fri, 01 Dec 2006 18:10:54 +0100
In-Reply-To: <Pine.GSO.4.58.0612011704230.271@marvin.argfrp.us.uu.net> (Chris
	L. Morrow's message of "Fri, 01 Dec 2006 17:04:38 +0000 (GMT)")
Errors-To: owner-nanog@merit.edu


* Chris L. Morrow:

>> | 6. Transition
>> |
>> |    The scheme described in this document allows a gradual transition
>> |    from 2-octet AS numbers to 4-octet AS numbers. One can upgrade one
>> |    Autonomous System or one BGP speaker at a time.
>>
>> Routers on stub ASs don't need upgrading at all, for instance.
>
> but filter lists and such I imagine might :(

Only if you want to keep your fine-grained filters, which shouldn't be
a problem over the next few years.  From a purely BGP 4 perspective,
the transition looks like a new tier 1 ISP entering the stage.

(But if more than one of your peers switch, you better upgrade as
well.)

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